From: ibmmuseum@gmail.com   
      
   > > https://datasheet.datasheetarchive.com/originals/distributor   
   /Datasheets-22/DSA-423854.pdf   
   > > Used on 16/4 adapters with the discrete pair of 53F2158 / A-B C30216   
      
   You can see the LM3045 chips in the schematics for the TROPIC design - which   
   seems to be a straight copy (licensed from IBM by National Semiconductor) of   
   the 'Pinegrove'-based adapters: https://www.ardent-tool.com/data   
   heets/NS_AN-816.pdf   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)